Noise and Vibration from driveline, rear of Transmission

Old Oct 3, 2021 | 02:33 PM
  #1  
rick hesek's Avatar
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2014 CLS550
Noise and Vibration from driveline, rear of Transmission

Getting a vibration from what seems to be the front flex disc. I can feel it and hear it, in the center arm rest.
Happens at coast, between 30 and 40 mph and in both S or E trans mode.

2014 CLS550 4, 67k miles.
Sound familiar to anybody?
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Old Oct 6, 2021 | 01:41 PM
  #2  
W218CLS's Avatar
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2012 mercedes cls550
amazing how little people know about this car and are absolutely clueless to help.

It sounds like your mounts, engine mounts or trans mounts.

Originally Posted by rick hesek
Getting a vibration from what seems to be the front flex disc. I can feel it and hear it, in the center arm rest.
Happens at coast, between 30 and 40 mph and in both S or E trans mode.

2014 CLS550 4, 67k miles.
Sound familiar to anybody?
Reply
Old Oct 6, 2021 | 02:57 PM
  #3  
konigstiger's Avatar
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From: North Scottsdale, AZ
'71 Pinto
FWIW see attachment.
Attached Files
File Type: pdf
Check flex disks.pdf (885.2 KB, 123 views)
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Old Oct 7, 2021 | 03:39 PM
  #4  
rick hesek's Avatar
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2014 CLS550
Update:
My car went in for transmission service and I asked to get a test drive regarding this noise.
Turns out a section of the heat shield came loose and was rubbing against the front flex disc, under these specific driving conditions.
Dealer reattached heat shield, noise gone, no charge, since the car was on the lift anyway.

Thanks for the replies and thank you, again, Konigstiger, for the information.
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